ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 533 



Column. 



116. Chiton Stelleri, n. s.,= C. amiculatus, Sby v Rve., non Pallas. 



117. Chiton Pallasii, n. s. 



117. Chiton Brandtii, u. s. 



118. Chiton Mertcnsii, n. s. 



118. Cliiton Eschscholtzii, n. s. 



1 19. Chiton Wosnessenskii, n. s. [A typical Mopalia : mantle indented behind.] 



120. Chiton Merckii, n. s. [=C7t. ligtwsus, Gld., July 1846:= Mopalia Monterey en- 



sis, Cpr.]. 



120. Chiton limdus, n. s. 



121. Chiton scrobiculatus, n. s., California. 

 121. Chiton Sitchensis, n. s. 



Nov. 1847 (read April 28) : vol. vi. No. 20 (total number 140). 



317. Patella (?Acma>a) ancyloides, n. s. [Probably a delicately grown young patina : 



the diagnosis, however, suits textilis. Name afterwards altered to per- 

 sonoides, to distinguish from Propilidium ancyloide, Fbs.] 



318. Patella (?Acmcea) ceruginosa, n. s. [Probably =textilis, Gld., 1846; but the 



figure is more like scabra, Nutt.] 



318. Patella (? AcmeeaJpHeolus, n. s. [Probably the young of A. pelta ; but assigned 

 in Mus. Cum. to a very different shell, =A. rosacea, Cpr.] 



318. Patella (?Acmeea) Asmi, n. s. [A specimen of A. pelta, in Dr. Cooper's col- 



lection, began life as A. Asmi.] 



319. Patella (?Acm(ca) cceca; genuina, vertice erecto, Atlantic. 



319. Patella (?Acnuea) cceca, var. concentrica j vertice subinflexo ; with crowded 



lamellae of growth. 



1849 ; read Oct. 6, 1848 : vol. vii. No. 160. " Vorlaufige Anzeige einiger neuer 

 Konchylien aus den Geschlechtern : Litorina, &c. ; von Dr. A. Th. v. Middendorff." 



241 no. 1. Litorina yrandis. [The specimens in B. M. and Mus. Cum. appear to 



represent a large var. of L. litorea.~\ 



242 2. Litorina Kurila (like tenebrosa). 



242 3. Litorina subtenebrosa. [Probably an extreme var. of L. Sitchana.~\ 



243 4. Tritonium (Fusus) antiqmtm, Ln v var. Behringiana. 

 243 5. Tritonium (Fusus) Behringii. 



243 6. Tritonium (Fusus) Baerii. 



244 7. Tritonium (Fusus) Sitchense [probably = Chr. dims, Rve., var. ; but stated 



to be " e livido viridescente ; columella saepius umbilicata"]. 

 244 8. Tritonium (Fusus) liiridum [= Vitularia aspera, Baird, smooth form]. 

 244 9. Tritonium (Buccinum) simplex. 



244 10. Tritonium (Buccinum) Ochotense. 



245 11. Tritonium (Buccinum) undatum, Linn., var. Schantarica. 

 245 12. Tritonium (Buccimim) ooicles. 



245 13. Bullia ampullacea [is the genus Volutharpa of Fischer]. 



246 15. Natica herculcca, North California [=L. Leivisii, Gld., July 1847], 

 246 16. Margarita arctica, Leach, var. major. 



In the text of the 4to volumes, the following corrections are suggested, the 

 numbers referring to the page in the B. A. Report which contains the abstract. 



Report, 215. Acmcsa scutum, D'Orb. [is quite distinct from A. persona, Esch. The 

 latter, as figured by Midd., is a very young shell, not certainly be- 

 longing to the species]. 



216. Turritella Eschrichtii. [=Bittium .filosum, Gld., May 1849. There 

 being no month-date to Midd.'s species, the excellent name of Gld., 

 which may also be of Phil. 1848, should be retained.] 



216. Trochus ater and maestus [are well-marked South American species. 

 Probably the shells intended are Chlorostoma Junebrale, A. Ad., 

 and its congeners.] 



216. Trochus eiiryomphalus [= Phorcus pulligo, Mart.,teste Dohrn]. 



216. Trochus modestus, Md. [==//o.szs,Wd., = Calliostoma costatum, Martyn]. 



216. Trochus (Turbo) Fokkesii [is from the peninsula of Lower Cal.]. 



216. Natica flava, Gld. [" is entirely different from any of the synonyms 

 under it," teste Gld.]. 



19 



